NFT Standards
Introduction
NFT standards are technical specifications that define how non-fungible tokens operate on a blockchain. These standards ensure that NFTs can interact with wallets, marketplaces, and decentralized applications in a consistent and predictable way.
By following common standards, developers can create NFTs that are compatible with a wide range of tools and platforms. This compatibility helps maintain interoperability across the Web3 ecosystem.
NFT standards are usually defined through smart contract interfaces that specify how tokens are created, transferred, and managed.
What is it
An NFT standard is a set of rules that defines how NFTs behave on a blockchain network.
These rules describe:
How NFTs are created and identified
How ownership is recorded and transferred
How external applications can interact with the token
How metadata is associated with the NFT
Standards ensure that different applications can recognize and work with NFTs created by various developers.
How it works
NFT standards are implemented through smart contract code that follows a predefined interface.
The process typically works as follows:
Developers create a smart contract that follows an NFT standard
The contract defines functions for creating and transferring NFTs
Each NFT receives a unique token identifier
Wallets and marketplaces interact with the contract using standard functions
Applications display the NFT using metadata associated with the token
Because the contract follows a recognized standard, different platforms can interact with the NFT collection.
Common NFT standards
Several widely used NFT standards exist across blockchain networks.
Examples include:
ERC-721
One of the earliest and most widely used NFT standards. Each token is unique and individually identifiable.
ERC-1155
A multi-token standard that allows both fungible and non-fungible tokens within the same contract.
ERC-721A
An optimized implementation of ERC-721 designed to reduce gas costs when minting multiple NFTs.
Different projects may choose a standard depending on their technical requirements.
Common risks
While NFT standards improve compatibility, certain risks may still exist.
Examples include:
Interacting with contracts that do not fully follow standard specifications
Confusion between different token standards
Smart contract vulnerabilities within poorly implemented standards
Limited support for some standards in certain marketplaces or wallets
Verifying the smart contract implementation helps users understand how the NFT operates.
How to verify
Users can verify the NFT standard used by a collection by inspecting the smart contract through blockchain explorers.
Verification methods include:
Checking the contract interface
Reviewing verified contract code
Identifying functions associated with known NFT standards
Confirming compatibility with wallets and marketplaces
These steps help determine how the NFT collection is structured.
Applied in ASTROC2M
Within the ASTROC2M ecosystem, NFT collections are implemented through smart contracts that follow recognized NFT standards.
Using standardized token structures helps ensure compatibility with:
Blockchain wallets
NFT marketplaces
Blockchain explorers
Web3 applications
Because these standards are publicly defined, users can inspect smart contracts to understand how the NFT collection operates.